Specification
Details
Resistance Range
0.1Ω∼5Ω
Resistance Tolerance
±1%∼±10%; higher precision available upon request
Temperature Coefficient
±50ppm/°C∼±120ppm/°Cat25∘C∼105∘C; other coefficients available upon request
Rated Power
85∘C: 250 W; maximum working voltage ≤ 5,000 VDC
Short-Time Overload
500W,70∘C,10 seconds;ΔR≤±(0.4%R+0.001Ω)
Dielectric Withstand Voltage
6kVrms,50Hz,1 minute; maximum可达12kVrms
Insulation Resistance
500V,≥10GΩ
Inductance
≤400nH
Distributed Capacitance
≤110pF
Humidity Resistance
56 days at 40∘C; RH ≥ 95%;ΔR≤±(0.25%R+0.001Ω)
Temperature Cycling
−55∘C∼+125∘C(each cycle 0.5 hours); 5 cycles;ΔR≤±(0.2%R+0.001Ω)
High-Frequency Vibration
MIL-Std-202, Method 204, Condition D;ΔR≤±(0.2%R+0.001Ω)
Power Endurance
Rated power1,000W; base plate temperature85∘C;ΔR≤±(0.4%R+0.001Ω)
Operating Temperature Range
−55∘C∼+155∘C
Terminal Installation
M4/M5 screws, maximum torque2Nm
Resistance Installation
M4 screws, maximum torque1.8Nm

Power Dissipation vs. Temperature

Note:

Specification
Details
Resistance Range
0.1Ω∼5Ω
Resistance Tolerance
±1%∼±10%; higher precision available upon request
Temperature Coefficient
±50ppm/°C∼±120ppm/°Cat25∘C∼105∘C; other coefficients available upon request
Rated Power
85∘C: 250 W; maximum working voltage ≤ 5,000 VDC
Short-Time Overload
500W,70∘C,10 seconds;ΔR≤±(0.4%R+0.001Ω)
Dielectric Withstand Voltage
6kVrms,50Hz,1 minute; maximum可达12kVrms
Insulation Resistance
500V,≥10GΩ
Inductance
≤400nH
Distributed Capacitance
≤110pF
Humidity Resistance
56 days at 40∘C; RH ≥ 95%;ΔR≤±(0.25%R+0.001Ω)
Temperature Cycling
−55∘C∼+125∘C(each cycle 0.5 hours); 5 cycles;ΔR≤±(0.2%R+0.001Ω)
High-Frequency Vibration
MIL-Std-202, Method 204, Condition D;ΔR≤±(0.2%R+0.001Ω)
Power Endurance
Rated power1,000W; base plate temperature85∘C;ΔR≤±(0.4%R+0.001Ω)
Operating Temperature Range
−55∘C∼+155∘C
Terminal Installation
M4/M5 screws, maximum torque2Nm
Resistance Installation
M4 screws, maximum torque1.8Nm

Power Dissipation vs. Temperature

Note:

Specification
Details
Resistance Range
0.1Ω∼5Ω
Resistance Tolerance
±1%∼±10%; higher precision available upon request
Temperature Coefficient
±50ppm/°C∼±120ppm/°Cat25∘C∼105∘C; other coefficients available upon request
Rated Power
85∘C: 250 W; maximum working voltage ≤ 5,000 VDC
Short-Time Overload
500W,70∘C,10 seconds;ΔR≤±(0.4%R+0.001Ω)
Dielectric Withstand Voltage
6kVrms,50Hz,1 minute; maximum可达12kVrms
Insulation Resistance
500V,≥10GΩ
Inductance
≤400nH
Distributed Capacitance
≤110pF
Humidity Resistance
56 days at 40∘C; RH ≥ 95%;ΔR≤±(0.25%R+0.001Ω)
Temperature Cycling
−55∘C∼+125∘C(each cycle 0.5 hours); 5 cycles;ΔR≤±(0.2%R+0.001Ω)
High-Frequency Vibration
MIL-Std-202, Method 204, Condition D;ΔR≤±(0.2%R+0.001Ω)
Power Endurance
Rated power1,000W; base plate temperature85∘C;ΔR≤±(0.4%R+0.001Ω)
Operating Temperature Range
−55∘C∼+155∘C
Terminal Installation
M4/M5 screws, maximum torque2Nm
Resistance Installation
M4 screws, maximum torque1.8Nm

Power Dissipation vs. Temperature

Note:

EAK Resistors logo Resistors
d5f3855d79ba5d252ef6951dcc82479
Metal Foil Resistors

High-Power Resistors (Metal Foil, No-Sense Design)

<table class="qwen-markdown-table w-full max-w-full table-auto rounded-xl text-left text-sm text-gray-500 dark:text-gray-400" style="color: #333333; font-size: 16px;"> <thead class="qwen-markdown-table-thead border-none bg-gray-50 text-xs uppercase text-gray-700 dark:bg-gray-850 dark:text-gray-400"> <tr class="qwen-markdown-table-thead-tr"> <th class="qwen-markdown-table-thead-tr-th cursor-pointer select-none border border-gray-50 dark:border-gray-850" scope="col"> <div class="qwen-markdown-table-thead-tr-th-col flex items-center gap-1.5"><strong>Specification</strong></div></th> <th class="qwen-markdown-table-thead-tr-th cursor-pointer select-none border border-gray-50 dark:border-gray-850" scope="col"> <div class="qwen-markdown-table-thead-tr-th-col flex items-center gap-1.5"><strong>Details</strong></div></th> </tr> </thead> <tbody class="qwen-markdown-table-tbody"> <tr class="qwen-markdown-table-tbody-tr bg-white text-xs dark:border-gray-850 dark:bg-gray-900"> <td class="qwen-markdown-table-tbody-tr-td w-max border border-gray-50 text-gray-900 dark:border-gray-850 dark:text-white"> <div class="qwen-markdown-table-tbody-tr-td-col flex items-center gap-[2px]"><strong>Resistance Range</strong></div></td> <td class="qwen-markdown-table-tbody-tr-td w-max border border-gray-50 text-gray-900 dark:border-gray-850 dark:text-white"> <div class="qwen-markdown-table-tbody-tr-td-col flex items-center gap-[2px]"><span class="katex"><span class="katex-html" aria-hidden="true"><span class="base"><span class="mord">0.1Ω</span><span class="mrel">∼</span></span><span class="base"><span class="mord">5Ω</span></span></span></span></div></td> </tr> <tr class="qwen-markdown-table-tbody-tr bg-white text-xs dark:border-gray-850 dark:bg-gray-900"> <td class="qwen-markdown-table-tbody-tr-td w-max border border-gray-50 text-gray-900 dark:border-gray-850 dark:text-white"> <div class="qwen-markdown-table-tbody-tr-td-col flex items-center gap-[2px]"><strong>Resistance Tolerance</strong></div></td> <td class="qwen-markdown-table-tbody-tr-td w-max border border-gray-50 text-gray-900 dark:border-gray-850 dark:text-white"> <div class="qwen-markdown-table-tbody-tr-td-col flex items-center gap-[2px]"><span class="katex"><span class="katex-html" aria-hidden="true"><span class="base"><span class="mord">±</span><span class="mord">1%</span><span class="mrel">∼</span></span><span class="base"><span class="mord">±</span><span class="mord">10%</span></span></span></span>; higher precision available upon request</div></td> </tr> <tr class="qwen-markdown-table-tbody-tr bg-white text-xs dark:border-gray-850 dark:bg-gray-900"> <td class="qwen-markdown-table-tbody-tr-td w-max border border-gray-50 text-gray-900 dark:border-gray-850 dark:text-white"> <div class="qwen-markdown-table-tbody-tr-td-col flex items-center gap-[2px]"><strong>Temperature Coefficient</strong></div></td> <td class="qwen-markdown-table-tbody-tr-td w-max border border-gray-50 text-gray-900 dark:border-gray-850 dark:text-white"> <div class="qwen-markdown-table-tbody-tr-td-col flex items-center gap-[2px]"><span class="katex"><span class="katex-html" aria-hidden="true"><span class="base"><span class="mord">±</span><span class="mord">50</span><span class="mord text"><span class="mord">ppm/°C</span></span><span class="mrel">∼</span></span><span class="base"><span class="mord">±</span><span class="mord">120</span><span class="mord text"><span class="mord">ppm/°C</span></span></span></span></span>at<span class="katex"><span class="katex-html" aria-hidden="true"><span class="base"><span class="mord">2</span><span class="mord">5<span class="msupsub"><span class="vlist-t"><span class="vlist-r"><span class="vlist"><span class="sizing reset-size6 size3 mtight"><span class="mbin mtight">∘</span></span></span></span></span></span></span><span class="mord text"><span class="mord">C</span></span><span class="mrel">∼</span></span><span class="base"><span class="mord">10</span><span class="mord">5<span class="msupsub"><span class="vlist-t"><span class="vlist-r"><span class="vlist"><span class="sizing reset-size6 size3 mtight"><span class="mbin mtight">∘</span></span></span></span></span></span></span><span class="mord text"><span class="mord">C</span></span></span></span></span>; other coefficients available upon request</div></td> </tr> <tr class="qwen-markdown-table-tbody-tr bg-white text-xs dark:border-gray-850 dark:bg-gray-900"> <td class="qwen-markdown-table-tbody-tr-td w-max border border-gray-50 text-gray-900 dark:border-gray-850 dark:text-white"> <div class="qwen-markdown-table-tbody-tr-td-col flex items-center gap-[2px]"><strong>Rated Power</strong></div></td> <td class="qwen-markdown-table-tbody-tr-td w-max border border-gray-50 text-gray-900 dark:border-gray-850 dark:text-white"> <div class="qwen-markdown-table-tbody-tr-td-col flex items-center gap-[2px]"><span class="katex"><span class="katex-html" aria-hidden="true"><span class="base"><span class="mord">8</span><span class="mord">5<span class="msupsub"><span class="vlist-t"><span class="vlist-r"><span class="vlist"><span class="sizing reset-size6 size3 mtight"><span class="mbin mtight">∘</span></span></span></span></span></span></span><span class="mord text"><span class="mord">C</span></span></span></span></span>: 250 W; maximum working voltage ≤ 5,000 VDC</div></td> </tr> <tr class="qwen-markdown-table-tbody-tr bg-white text-xs dark:border-gray-850 dark:bg-gray-900"> <td class="qwen-markdown-table-tbody-tr-td w-max border border-gray-50 text-gray-900 dark:border-gray-850 dark:text-white"> <div class="qwen-markdown-table-tbody-tr-td-col flex items-center gap-[2px]"><strong>Short-Time Overload</strong></div></td> <td class="qwen-markdown-table-tbody-tr-td w-max border border-gray-50 text-gray-900 dark:border-gray-850 dark:text-white"> <div class="qwen-markdown-table-tbody-tr-td-col flex items-center gap-[2px]"><span class="katex"><span class="katex-html" aria-hidden="true"><span class="base"><span class="mord">500</span><span class="mord text"><span class="mord">W</span></span><span class="mpunct">,</span><span class="mord">7</span><span class="mord">0<span class="msupsub"><span class="vlist-t"><span class="vlist-r"><span class="vlist"><span class="sizing reset-size6 size3 mtight"><span class="mbin mtight">∘</span></span></span></span></span></span></span><span class="mord text"><span class="mord">C</span></span><span class="mpunct">,</span><span class="mord">10</span><span class="mord text"><span class="mord"> seconds</span></span></span></span></span>;<span class="katex"><span class="katex-html" aria-hidden="true"><span class="base"><span class="mord">Δ</span><span class="mord mathnormal">R</span><span class="mrel">≤</span></span><span class="base"><span class="mord">±</span><span class="mopen">(</span><span class="mord">0.4%</span><span class="mord mathnormal">R</span><span class="mbin">+</span></span><span class="base"><span class="mord">0.001Ω</span><span class="mclose">)</span></span></span></span></div></td> </tr> <tr class="qwen-markdown-table-tbody-tr bg-white text-xs dark:border-gray-850 dark:bg-gray-900"> <td class="qwen-markdown-table-tbody-tr-td w-max border border-gray-50 text-gray-900 dark:border-gray-850 dark:text-white"> <div class="qwen-markdown-table-tbody-tr-td-col flex items-center gap-[2px]"><strong>Dielectric Withstand Voltage</strong></div></td> <td class="qwen-markdown-table-tbody-tr-td w-max border border-gray-50 text-gray-900 dark:border-gray-850 dark:text-white"> <div class="qwen-markdown-table-tbody-tr-td-col flex items-center gap-[2px]"><span class="katex"><span class="katex-html" aria-hidden="true"><span class="base"><span class="mord">6</span><span class="mord text"><span class="mord">kVrms</span></span><span class="mpunct">,</span><span class="mord">50</span><span class="mord text"><span class="mord">Hz</span></span><span class="mpunct">,</span><span class="mord">1</span><span class="mord text"><span class="mord"> minute</span></span></span></span></span>; maximum可达<span class="katex"><span class="katex-html" aria-hidden="true"><span class="base"><span class="mord">12</span><span class="mord text"><span class="mord">kVrms</span></span></span></span></span></div></td> </tr> <tr class="qwen-markdown-table-tbody-tr bg-white text-xs dark:border-gray-850 dark:bg-gray-900"> <td class="qwen-markdown-table-tbody-tr-td w-max border border-gray-50 text-gray-900 dark:border-gray-850 dark:text-white"> <div class="qwen-markdown-table-tbody-tr-td-col flex items-center gap-[2px]"><strong>Insulation Resistance</strong></div></td> <td class="qwen-markdown-table-tbody-tr-td w-max border border-gray-50 text-gray-900 dark:border-gray-850 dark:text-white"> <div class="qwen-markdown-table-tbody-tr-td-col flex items-center gap-[2px]"><span class="katex"><span class="katex-html" aria-hidden="true"><span class="base"><span class="mord">500</span><span class="mord text"><span class="mord">V</span></span><span class="mpunct">,</span><span class="mrel">≥</span></span><span class="base"><span class="mord">10</span><span class="mord text"><span class="mord">GΩ</span></span></span></span></span></div></td> </tr> <tr class="qwen-markdown-table-tbody-tr bg-white text-xs dark:border-gray-850 dark:bg-gray-900"> <td class="qwen-markdown-table-tbody-tr-td w-max border border-gray-50 text-gray-900 dark:border-gray-850 dark:text-white"> <div class="qwen-markdown-table-tbody-tr-td-col flex items-center gap-[2px]"><strong>Inductance</strong></div></td> <td class="qwen-markdown-table-tbody-tr-td w-max border border-gray-50 text-gray-900 dark:border-gray-850 dark:text-white"> <div class="qwen-markdown-table-tbody-tr-td-col flex items-center gap-[2px]"><span class="katex"><span class="katex-html" aria-hidden="true"><span class="base"><span class="mrel">≤</span></span><span class="base"><span class="mord">400</span><span class="mord text"><span class="mord">nH</span></span></span></span></span></div></td> </tr> <tr class="qwen-markdown-table-tbody-tr bg-white text-xs dark:border-gray-850 dark:bg-gray-900"> <td class="qwen-markdown-table-tbody-tr-td w-max border border-gray-50 text-gray-900 dark:border-gray-850 dark:text-white"> <div class="qwen-markdown-table-tbody-tr-td-col flex items-center gap-[2px]"><strong>Distributed Capacitance</strong></div></td> <td class="qwen-markdown-table-tbody-tr-td w-max border border-gray-50 text-gray-900 dark:border-gray-850 dark:text-white"> <div class="qwen-markdown-table-tbody-tr-td-col flex items-center gap-[2px]"><span class="katex"><span class="katex-html" aria-hidden="true"><span class="base"><span class="mrel">≤</span></span><span class="base"><span class="mord">110</span><span class="mord text"><span class="mord">pF</span></span></span></span></span></div></td> </tr> <tr class="qwen-markdown-table-tbody-tr bg-white text-xs dark:border-gray-850 dark:bg-gray-900"> <td class="qwen-markdown-table-tbody-tr-td w-max border border-gray-50 text-gray-900 dark:border-gray-850 dark:text-white"> <div class="qwen-markdown-table-tbody-tr-td-col flex items-center gap-[2px]"><strong>Humidity Resistance</strong></div></td> <td class="qwen-markdown-table-tbody-tr-td w-max border border-gray-50 text-gray-900 dark:border-gray-850 dark:text-white"> <div class="qwen-markdown-table-tbody-tr-td-col flex items-center gap-[2px]"><span class="katex"><span class="katex-html" aria-hidden="true"><span class="base"><span class="mord">56</span><span class="mord text"><span class="mord"> days at </span></span><span class="mord">4</span><span class="mord">0<span class="msupsub"><span class="vlist-t"><span class="vlist-r"><span class="vlist"><span class="sizing reset-size6 size3 mtight"><span class="mbin mtight">∘</span></span></span></span></span></span></span><span class="mord text"><span class="mord">C</span></span></span></span></span>; RH ≥ 95%;<span class="katex"><span class="katex-html" aria-hidden="true"><span class="base"><span class="mord">Δ</span><span class="mord mathnormal">R</span><span class="mrel">≤</span></span><span class="base"><span class="mord">±</span><span class="mopen">(</span><span class="mord">0.25%</span><span class="mord mathnormal">R</span><span class="mbin">+</span></span><span class="base"><span class="mord">0.001Ω</span><span class="mclose">)</span></span></span></span></div></td> </tr> <tr class="qwen-markdown-table-tbody-tr bg-white text-xs dark:border-gray-850 dark:bg-gray-900"> <td class="qwen-markdown-table-tbody-tr-td w-max border border-gray-50 text-gray-900 dark:border-gray-850 dark:text-white"> <div class="qwen-markdown-table-tbody-tr-td-col flex items-center gap-[2px]"><strong>Temperature Cycling</strong></div></td> <td class="qwen-markdown-table-tbody-tr-td w-max border border-gray-50 text-gray-900 dark:border-gray-850 dark:text-white"> <div class="qwen-markdown-table-tbody-tr-td-col flex items-center gap-[2px]"><span class="katex"><span class="katex-html" aria-hidden="true"><span class="base"><span class="mord">−</span><span class="mord">5</span><span class="mord">5<span class="msupsub"><span class="vlist-t"><span class="vlist-r"><span class="vlist"><span class="sizing reset-size6 size3 mtight"><span class="mbin mtight">∘</span></span></span></span></span></span></span><span class="mord text"><span class="mord">C</span></span><span class="mrel">∼</span></span><span class="base"><span class="mord">+</span><span class="mord">12</span><span class="mord">5<span class="msupsub"><span class="vlist-t"><span class="vlist-r"><span class="vlist"><span class="sizing reset-size6 size3 mtight"><span class="mbin mtight">∘</span></span></span></span></span></span></span><span class="mord text"><span class="mord">C</span></span></span></span></span>(each cycle 0.5 hours); 5 cycles;<span class="katex"><span class="katex-html" aria-hidden="true"><span class="base"><span class="mord">Δ</span><span class="mord mathnormal">R</span><span class="mrel">≤</span></span><span class="base"><span class="mord">±</span><span class="mopen">(</span><span class="mord">0.2%</span><span class="mord mathnormal">R</span><span class="mbin">+</span></span><span class="base"><span class="mord">0.001Ω</span><span class="mclose">)</span></span></span></span></div></td> </tr> <tr class="qwen-markdown-table-tbody-tr bg-white text-xs dark:border-gray-850 dark:bg-gray-900"> <td class="qwen-markdown-table-tbody-tr-td w-max border border-gray-50 text-gray-900 dark:border-gray-850 dark:text-white"> <div class="qwen-markdown-table-tbody-tr-td-col flex items-center gap-[2px]"><strong>High-Frequency Vibration</strong></div></td> <td class="qwen-markdown-table-tbody-tr-td w-max border border-gray-50 text-gray-900 dark:border-gray-850 dark:text-white"> <div class="qwen-markdown-table-tbody-tr-td-col flex items-center gap-[2px]">MIL-Std-202, Method 204, Condition D;<span class="katex"><span class="katex-html" aria-hidden="true"><span class="base"><span class="mord">Δ</span><span class="mord mathnormal">R</span><span class="mrel">≤</span></span><span class="base"><span class="mord">±</span><span class="mopen">(</span><span class="mord">0.2%</span><span class="mord mathnormal">R</span><span class="mbin">+</span></span><span class="base"><span class="mord">0.001Ω</span><span class="mclose">)</span></span></span></span></div></td> </tr> <tr class="qwen-markdown-table-tbody-tr bg-white text-xs dark:border-gray-850 dark:bg-gray-900"> <td class="qwen-markdown-table-tbody-tr-td w-max border border-gray-50 text-gray-900 dark:border-gray-850 dark:text-white"> <div class="qwen-markdown-table-tbody-tr-td-col flex items-center gap-[2px]"><strong>Power Endurance</strong></div></td> <td class="qwen-markdown-table-tbody-tr-td w-max border border-gray-50 text-gray-900 dark:border-gray-850 dark:text-white"> <div class="qwen-markdown-table-tbody-tr-td-col flex items-center gap-[2px]">Rated power<span class="katex"><span class="katex-html" aria-hidden="true"><span class="base"><span class="mord">1</span><span class="mpunct">,</span><span class="mord">000</span><span class="mord text"><span class="mord">W</span></span></span></span></span>; base plate temperature<span class="katex"><span class="katex-html" aria-hidden="true"><span class="base"><span class="mord">8</span><span class="mord">5<span class="msupsub"><span class="vlist-t"><span class="vlist-r"><span class="vlist"><span class="sizing reset-size6 size3 mtight"><span class="mbin mtight">∘</span></span></span></span></span></span></span><span class="mord text"><span class="mord">C</span></span></span></span></span>;<span class="katex"><span class="katex-html" aria-hidden="true"><span class="base"><span class="mord">Δ</span><span class="mord mathnormal">R</span><span class="mrel">≤</span></span><span class="base"><span class="mord">±</span><span class="mopen">(</span><span class="mord">0.4%</span><span class="mord mathnormal">R</span><span class="mbin">+</span></span><span class="base"><span class="mord">0.001Ω</span><span class="mclose">)</span></span></span></span></div></td> </tr> <tr class="qwen-markdown-table-tbody-tr bg-white text-xs dark:border-gray-850 dark:bg-gray-900"> <td class="qwen-markdown-table-tbody-tr-td w-max border border-gray-50 text-gray-900 dark:border-gray-850 dark:text-white"> <div class="qwen-markdown-table-tbody-tr-td-col flex items-center gap-[2px]"><strong>Operating Temperature Range</strong></div></td> <td class="qwen-markdown-table-tbody-tr-td w-max border border-gray-50 text-gray-900 dark:border-gray-850 dark:text-white"> <div class="qwen-markdown-table-tbody-tr-td-col flex items-center gap-[2px]"><span class="katex"><span class="katex-html" aria-hidden="true"><span class="base"><span class="mord">−</span><span class="mord">5</span><span class="mord">5<span class="msupsub"><span class="vlist-t"><span class="vlist-r"><span class="vlist"><span class="sizing reset-size6 size3 mtight"><span class="mbin mtight">∘</span></span></span></span></span></span></span><span class="mord text"><span class="mord">C</span></span><span class="mrel">∼</span></span><span class="base"><span class="mord">+</span><span class="mord">15</span><span class="mord">5<span class="msupsub"><span class="vlist-t"><span class="vlist-r"><span class="vlist"><span class="sizing reset-size6 size3 mtight"><span class="mbin mtight">∘</span></span></span></span></span></span></span><span class="mord text"><span class="mord">C</span></span></span></span></span></div></td> </tr> <tr class="qwen-markdown-table-tbody-tr bg-white text-xs dark:border-gray-850 dark:bg-gray-900"> <td class="qwen-markdown-table-tbody-tr-td w-max border border-gray-50 text-gray-900 dark:border-gray-850 dark:text-white"> <div class="qwen-markdown-table-tbody-tr-td-col flex items-center gap-[2px]"><strong>Terminal Installation</strong></div></td> <td class="qwen-markdown-table-tbody-tr-td w-max border border-gray-50 text-gray-900 dark:border-gray-850 dark:text-white"> <div class="qwen-markdown-table-tbody-tr-td-col flex items-center gap-[2px]">M4/M5 screws, maximum torque<span class="katex"><span class="katex-html" aria-hidden="true"><span class="base"><span class="mord">2</span><span class="mord text"><span class="mord">Nm</span></span></span></span></span></div></td> </tr> <tr class="qwen-markdown-table-tbody-tr bg-white text-xs dark:border-gray-850 dark:bg-gray-900"> <td class="qwen-markdown-table-tbody-tr-td w-max border border-gray-50 text-gray-900 dark:border-gray-850 dark:text-white"> <div class="qwen-markdown-table-tbody-tr-td-col flex items-center gap-[2px]"><strong>Resistance Installation</strong></div></td> <td class="qwen-markdown-table-tbody-tr-td w-max border border-gray-50 text-gray-900 dark:border-gray-850 dark:text-white"> <div class="qwen-markdown-table-tbody-tr-td-col flex items-center gap-[2px]">M4 screws, maximum torque<span class="katex"><span class="katex-html" aria-hidden="true"><span class="base"><span class="mord">1.8</span><span class="mord text"><span class="mord">Nm</span></span></span></span></span></div></td> </tr> </tbody> </table> <div class="qwen-markdown-table-wrap qwen-markdown-table-wrap-pc group relative w-full"> <div class="qwen-markdown-table-thead-tool invisible group-hover:visible"> <div class="flex" aria-label="导出到 CSV"></div> </div> </div> <hr /> <h3><strong>Power Dissipation vs. Temperature</strong></h3> <ul> <li>The graph shows the relationship between the center temperature of the base plate and the power dissipation percentage.</li> <li>At <span class="katex"><span class="katex-html" aria-hidden="true"><span class="base"><span class="mord">8</span><span class="mord">5<span class="msupsub"><span class="vlist-t"><span class="vlist-r"><span class="vlist"><span class="sizing reset-size6 size3 mtight"><span class="mbin mtight">∘</span></span></span></span></span></span></span><span class="mord text"><span class="mord">C</span></span></span></span></span>, the power dissipation is <span class="katex"><span class="katex-html" aria-hidden="true"><span class="base"><span class="mord">100%</span></span></span></span>.</li> <li>At <span class="katex"><span class="katex-html" aria-hidden="true"><span class="base"><span class="mord">15</span><span class="mord">5<span class="msupsub"><span class="vlist-t"><span class="vlist-r"><span class="vlist"><span class="sizing reset-size6 size3 mtight"><span class="mbin mtight">∘</span></span></span></span></span></span></span><span class="mord text"><span class="mord">C</span></span></span></span></span>, the power dissipation drops to approximately <span class="katex"><span class="katex-html" aria-hidden="true"><span class="base"><span class="mord">20%</span></span></span></span>.</li> </ul> <h4>Note:</h4> <ul> <li data-spm-anchor-id="a2ty_o01.29997173.0.i9.2040c921CWxHuc">The thermal resistance slope (thermal impedance) is <span class="katex"><span class="katex-html" aria-hidden="true"><span class="base"><span class="mord">3.57</span><span class="mord text"><span class="mord">K/W</span></span></span></span></span> (or <span class="katex"><span class="katex-html" aria-hidden="true"><span class="base"><span class="mord">0.28</span><span class="mord text"><span class="mord">K/W</span></span></span></span></span>).</li> </ul>

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Category: Metal Foil Resistors

Description Specifications

The high-power resistors are made of metal foil resistor material, suitable for low resistance ranges. They feature a low temperature coefficient and excellent pulse overload capability. These resistors are widely used in applications such as automatic control of inverters, power supply, and control systems.

Technical Features

  1. Special Resin Filling :
    • The resistors use special resin materials to ensure large creepage distances and clearance gaps, enhancing insulation performance.
  2. Low Inductance and Capacitance :
    • A specialized design ensures minimal parasitic inductance and capacitance, making them ideal for high-frequency applications.
  3. High Pulse Load Capability :
    • The resistors can withstand extreme pulse loads, meeting the following test conditions:
      • Pulse Shape : Exponential decay pulse with f=8 Hz, time constant τ=15μs, single pulse energy E=30 J.
      • Installation Method : Fixed installation using two M4 screws, ensuring a clamping force between 120-160 N on the heat sink.
  4. Material Compliance :

    • The base material complies with UL94-V0 flammability standards, ensuring safety in high-temperature environments.

      Application Cases

      1. Inverter Control Systems :
        • High-power resistors are used in the feedback loop of inverters to dissipate excess energy during switching operations. Their low inductance ensures minimal interference with high-frequency signals.
      2. Power Supply Modules :
        • In DC-DC converters, these resistors serve as current-limiting elements or load resistors, providing stable operation under varying load conditions.
      3. Motor Control Applications :
        • Used in motor drives to absorb regenerative energy during braking, preventing overvoltage in the system.
      4. Industrial Automation :
        • In PLCs and industrial controllers, these resistors help manage transient currents and protect sensitive components from overloads.
      5. Telecommunications Equipment :
        • Employed in power conditioning circuits to stabilize voltages and filter out noise, ensuring reliable communication.

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HIGH POWER METAL FOIL RESISTORS

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